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HomeAircraftHelicopterGasser Model RC HelicoptersOther › Spectra-g, any suggestions?
10-16-2005 01:04 AM  13 years agoPost 41
Toadster25

rrKey Veteran

Iowa

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I was fixing my crashed spectra today and noticed the left frame is cracked. That is another $75 to go with the $265 I just spent plus my broken V blades. I hate crashing!

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10-16-2005 01:27 AM  13 years agoPost 42
thenewguy

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Corvallis, Oregon Where there is liquid sunshine!

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Yea that sucks, my Spectra knows the tasted of dirt at least 2 times. Not to say the little ones where i thought it was a goner. Sorry to hear about your mishap. I had to replace frame side on my first crash too.

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10-16-2005 05:28 AM  13 years agoPost 43
rbort

rrProfessor

Franklin, MA - USA

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Tomorrow is the day
Well the rain finally stopped after 11.83 inches 1/2 of which fell in the last 24 hours. The clouds finally parted, I saw the moon and said yeah baby I'm going flying tomorrow!

Will try out the gv-1 and let you guys know how it works out with the changed settings in the hidden menu. I will try to tweak it for best performance. Not going to be an enjoyable flying day tomorrow since the winds will be howling around 40mph but I'll be able to try out the gv-1 in any case. After that I'm coming home to mow my jungle, grass is 11 days since last mow and is laying down, not going to be easy or fun

Sorry to hear about your added damage Toadster. I did check my servo as you asked and I don't see any slop in the horn. What do you mean by loose? Does the head wobble? Maybe because you had those servo supports when you crashed the frame bent/kinked and pushed onto the servo horn and made it wobble? That would be my guess and maybe replace the case top will fix it (hole where bearing sits may be enlarged). I am not using those servo supports and sounds like I don't need them. They are something extra to install/maintain, more weight, and if you crash they can damage the servos more?

In any case good luck with your repairs and let us know when you get if off the ground again.

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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10-16-2005 08:23 PM  13 years agoPost 44
Toadster25

rrKey Veteran

Iowa

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Rbort I think your right about the top of the servo case being enlarged. The tail boom got pulled out enough to disegage the tube drive when I crashed and I think that probably pulled on the servo really hard and streched the hole where the bearing sits.

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10-16-2005 10:00 PM  13 years agoPost 45
P.J.

rrVeteran

Ireland

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Is anyone have problems with Hatori pipe loosing on Spectra, I have to tighten my pipe every 4 flights, its beginning to pi$$ me off. Has anyone any idea's on how to stop this problem?

P.J.

SAB Heli Division
Hyperion
Spektrum RC
Scorpion Systems
Spartan rc

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10-16-2005 10:45 PM  13 years agoPost 46
rbort

rrProfessor

Franklin, MA - USA

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Field report
Well despite the howling winds gusting to 38mph today, the Spectra flew very well. I was impressed with my gv-1 hidden menu adjustment as there is no more overspeeding now on the way down even from 500 feet. I did try the value at 0, 7, 10, and 14% and decided that 0% gives the best performance. About the only thing that wasn't perfect is that on the bottom of the descent when I add power sometimes the gv-1 will throttle up and down quick trying to "burst" the rpms. I think this is another issue and I need to do some more tests to see if there is another variable in there I can change that will make it less aggressive in bumping the rpms up. Also now due to this change when I change speeds from high to low it gets there alot quicker (in a hover for example). In the past it could take a few seconds for the rpms to settle back lower, due to the fact that the gv-1 was only throttling back so much.

I spent the rest of the time at the field debugging and setting up another guy's predator. He is having radio problem and I went though the TX setup and fixed alot of settings, wired the gv-1 properly and decided to give it a go. A range check revealed loss of signal (failsafe showing) fairly quick and the we noticed that it failsafes alot while the engine is running. Looks like the problem is coming from the stator gator and I asked him to rewire the setup to move rx wires away from it and also not run its signal wire up and though the frame as it could cut it and cause further issues. Didn't get to fly the Predator but at least I came up with a todo list for Tyrus and hopefully next time we will have better luck.

Now I want my V2 muffler to finish this thing!!

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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10-17-2005 12:47 AM  13 years agoPost 47
thenewguy

rrElite Veteran

Corvallis, Oregon Where there is liquid sunshine!

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What exactlly did you do in the govener to stop the over speed on the way down. If you could give a step by step that would be awsome. Mine does the same when desending, it would be nice to stop the over speeding.


To awnser the Hatori question, Yes everyone seems to have the same problem you do with it coming off. There are some big topics about it around runryder. The only true fix is a stainless steel header that a couple of people had made speacial for the problem. You can not get them thou. Look in my Gallary, you'll see one there.

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10-17-2005 01:59 AM  13 years agoPost 48
rbort

rrProfessor

Franklin, MA - USA

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Read gv-1 info of interest above or
In short, change the LmHV value from 20% to 0%. This will allow the gv-1 to throttle back all the way to idle if needed on the way down. To get into the hidden menu, push + and - on the left side of the gv-1 simultaneously while turning on the power.

This change will also allow the gv-1 to lower the speed from idle up 1 or 2 down to normal quicker than before and more as expected.

rbort....Where great ideas come from....yeah baby!

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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10-17-2005 02:22 AM  13 years agoPost 49
thenewguy

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Corvallis, Oregon Where there is liquid sunshine!

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I will try it on mine here soon after I get my pipe fixed. Got a guy going to weld it up for me. Plus the tubing is on order. I'm going to try posting some vedio here after the pipe is on. It would be nice to compare our birds together. Just to see different setups, and how they fly. I would love to see how much vibration your guys helis have at what rpms.

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10-17-2005 03:23 AM  13 years agoPost 50
Toadster25

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Iowa

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Could guys check the ball link on the highest mounted servo because I notice mine were getting loose already and none of the other links are loose. They are very loose. I think they are wearing out from vibration. I think there is more vibration in the top of the frames? It is wiered because I've had a Fury Expert for 4 years now and the links on it still aren't loose.

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10-17-2005 04:13 AM  13 years agoPost 51
rbort

rrProfessor

Franklin, MA - USA

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Mine looks ok
I checked the links and they all seem to be fine as of now. I only have 9 flights on the machine so maybe its not enough time to wear them.

I was playing around with the gv-1 again in the basement. Interesting thing I see is that even though its still on governor when I'm running my "flight test" with the dremel tool, it still throttles up to full when I go full throttle. I thought if the gv-1 was enabled it would be for the whole range, not for the mid section with the ends going to full throttle. Maybe its a design feature, and, with full pitch you need full throttle anyways.

I also understand now why overspeed if you turn the gv-1 off and back on in flight. In you are in 3/4 stick or so, and turn off the gv-1 it goes more throttle (as gv-1 was holding it back) and then when you turn the gv-1 back on it won't enguage unless you throttle back to around 1/2 stick or a little less.

About the vibration thing, heli looks real good and smooth in the air and the 611 is doing wonders when compared to the 401. No more tail shakes or anything like that, certainly a winner. My only complaint is that the fuel seems to be sloshing around in the tank while in flight. Looks like a washing machine in action effect. Not a problem in the begining, but when you get low like 1/4 tank it can lean out or get some bubbles in the line from the fuel splashing everywhere. Anyone else seen this phenomenon and any suggestions on how to smoothen it out?

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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10-17-2005 04:24 AM  13 years agoPost 52
thenewguy

rrElite Veteran

Corvallis, Oregon Where there is liquid sunshine!

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You should watch all the links. After about 8 gallons I had a link pop off in flight. It was the upper link you are talking about. Needless to say the Spectra saw dirt. Just keep a eye on all the links.

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10-27-2005 12:30 AM  13 years agoPost 53
rbort

rrProfessor

Franklin, MA - USA

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Muffler is here!
Well I finally received my Predator V2 Muffler for the Spectra. This thing came in a huge box and weighed a little more than I expected. I put it on the postal scale and it checks in at 13.7oz, wow, almost a pound of muffler on my gasser.

I'm not too worried about the weight and more interested in it staying on. Good news is that it fits without cutting the canopy and the CG checks in perfectly level even with a little 1100mah battery up front. The machine was a bit tail heavy, but with this muffler and canopy it seems to have corrected that.

Hoping it would stay on, I did the following:

1. Cleaned the screws with monokote trim remover/cleaner. This is some heavy duty stuff that even took some black color off the bolts along with the oil.

2. Installed split lock washers on the bolts.

3. Coated the threads of the screws with RTV sealer and put a little on the face of the muffler and exhaust gasket.

4. Tightened the screws with a screwdriver type allen wrench until they stopped moving.

As much as I wanted to start it up and hear it, I think its best to let it sit overnight and allow the RTV to cure.

Will post later when I get a chance to fly it if the darn thing holds on or not. Wish me luck!!

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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10-27-2005 12:46 AM  13 years agoPost 54
Toadster25

rrKey Veteran

Iowa

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Hi guys, I got my Spectra back in the air now but I am having some trouble with the engine running right. The first tank after the crash it seemed to run good just like it was before the crash. About midway through the second tank the engine has started to surge up and down while I am in a hover and don't even touch the pitch/throttle. It speeds up and then I have to adjust the pitch using the lever on the side of my 9303 to increase the load on the engine and bring the rpm back down. Then it drops to much and have to adjust the pitch again. It just keeps going back and forth too fast and then too slow.

I tried replacing the thin pickup fuel line in the tank and that didn't help and I have messed with both mixture screws but it does it no matter where I put the scews. It starts up realy good I think it is starting and running smoother than ever and I think that is because it is getting broke in. I also pulled the carb off and checked the insulator bolts and carb bolts to make sure they are tight and replaced the gaskets.

Rbort I think my V2 muffler may be staying on now that the engine seems to be running smother than before but I havn't had a much luck with other stuff so I havn't put very many flights in a row to know for sure.

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10-27-2005 01:25 AM  13 years agoPost 55
thenewguy

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Corvallis, Oregon Where there is liquid sunshine!

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Mty motor did the same after my second crach.It ended up being the insulator block. Check to see if the block has worped.

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10-27-2005 04:22 AM  13 years agoPost 56
Toadster25

rrKey Veteran

Iowa

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I forgot to say that I did replace it brand new after the crash and the engine is a hanson G26 pro. I don't know if this could be a problem but the temp outside is only in the 40 deg. F range and it wasn't this cold out before my crash so maybe that could have something to do with it?

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10-27-2005 05:26 AM  13 years agoPost 57
Pre-Mix

rrApprentice

U.S.A.

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mounting Century V2 muffler
Just wanted to share how I mounted my Century V2 muffler and it has not come loose for two gallons now.
I took a small sharpening stone with some oil and lapped the exhaust port on the engine being careful to not let any oil get into the motor. Do this until the surface is completely uniform and smooth, almost mirror like.
I then did the same thing with the mating surface on the muffler, take the time to make sure the entire surface cleans up. Now that both the mating surfaces are completely flat, clean thoroughly with IPA as well as the screws and the screw holes on the engine. I used a Q-tip on the screw holes, repeat until the Q-tip stays clean.
Then apply red loctite to the screws as well as on both the mating surfaces. Not much is required on the engine and muffler so use sparingly. Install the muffler making sure to tighten the screws evenly in two or three steps. Let sit overnight and thats that. Let me know if this works for you.


Johan

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11-03-2005 02:07 AM  13 years agoPost 58
SkyDigger

rrNovice

Quebec Canada

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I will soon be ordering a Spec G and I would like to know if you could help me make up my mind on the rotor head types. Does anyone knows the pros and cons of Extreme vs Tempest 3d rotor head?

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11-03-2005 03:59 AM  13 years agoPost 59
Toadster25

rrKey Veteran

Iowa

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I bought a Spectra with a tempest head. I don't do much 3d and planned to use heli to take some pictures too. The only reason I don't like the tempest head is it cost me more money after my crash.

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11-07-2005 02:00 AM  13 years agoPost 60
rbort

rrProfessor

Franklin, MA - USA

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Spectra notice to G26 users, or all for that matter
Well I had an accident with my Spectra-g after only 10 flights on it. Was in a hover the other day checking out the new V2 muffler, my voltwatch v2 operation with my generator, and the canopy on for the first time in flight. Everything looked sweet and she was hovering at about 3 to 4 feet as I was looking at the voltwatch before flying away to do some 3D when all of a sudden she nosed over and hard left all at the same time and before I could say "what the hell?" it was in the ground crashed and ready for repairs. What in the world happened I wondered as I walked over? Turns out the link that goes to the 2nd servo from the top popped off at the servo side. When that happened the swashplate dropped to the lower left quadrant and you can figure out what happened from there. I was really lucky that it didn't happen a minute later as I was planning to fly away and start doing some aerobatics....I can't only imagine how ugly it would have been with a link popping off at altitude. Due to the low altitude, surprisingly (as it hit with power before I could respond) the damage was very limited -- bent main shaft, bent flybar and blades broken in half. One of the skids was bent a bit too but I was able to pull that back straight with my knee on the skid brace and pulling on the skid from both ends. The skids were on rubber isolators a couple of which tore, and I believe those absorbed the shock and saved the skid braces.

The moral of the story is that if you are using a G26 you should ground your heli until you make some adjustments. I've already started to work on mine.

a) I spoke with Minair and I asked for some hardware to trap the pushrods like one would typically do with Giant Scale airplanes. Basically I replaced the ball links on the servo ends tonight with a screw, a 0003 washer, a ball to fit the screw, the ball link snapped on the ball, another 0003 washer, the servo horn, and then a locknut. No way the ball link can ever pop off again now.

b) I decided tonight that I want to do the other ends (bellcrank sides) now for added safety, so I will be ordering some parts to do that tomorrow. I think the heavy weight rods should be secured, the lighter ones to the swash and such are probably too light to vibrate off.

c) I spoke with Bruce Hanson. He is sent me a "trial" lighter piston to replace my current piston in my 3D motor with. The lighter piston is something he probably hopes will reduce the vibrations of the 26 3D motor and I need to try something to reduce vibrations so I will pull my motor apart and do this mod. If it works I'll let you guys know. I am looking at my gas tank fuel slosh to determine if vibration levels improved or not.

Gosh I feel like a reporter, but, as always as good or as bad as the news may be, I tell it how it is. I still plan on making this bird fly and fly well, and, with my experiences I hope to teach others how to avoid unnecessary grief. Stay tuned and will let you know how the mods help out.

Lastly, mind you Minair says that the G26 shakes alot more than the G231 and that the 231 works just fine with the Spectra, so, if you are using a 231 you may not have issues like this.

-=>Raja.

MA 1005 Hanson 280, 4220 flts
Spectra 27 3DMax, 3310 flts
Whiplash V1-2 Hanson 300, 1618 flts
Whiplash V2 Hanson 300, 473 flts

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